Performance of processing tomatoes under different supply levels of crop evapotranspiration

ABSTRACT Irrigation management is essential to promote appropriate plant growth and guarantee production and quality of the tomatoes for processing, increases the efficiency of nutrients use and contributes to ensure the sustainability of the production chain. This study was installed to evaluate productive performance of two processing tomato hybrids submitted to five water depths under drip irrigation system. Five levels of crop evapotranspiration (ETc) replacement (60%, 100%, 140%, 180% and 220%) and two tomato hybrids (BRS Sena and H 9992) were tested. The experimental design was a 5×2 factorial arranged in randomized complete block design with four replications. During the crop cycle, hybrids BRS Sena and H 9992 needed 692.20 and 418.43 mm of water, yielding 80 and 44.06 t ha-1, respectively. For both hybrids, the higher water productivity was observed when lower levels of irrigation were applied. Higher productivities and pulp yields of ‘BRS Sena’ and ‘H 9992’ were noticed when replacing 150-166% and 99-101% ETc, respectively. We observed that improving the performance of processing hybrid tomatoes is possible by adjusting irrigation levels for each hybrid according to growing conditions.

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Tomato yield as a function of water depths and irrigation suspension periods

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v23n8p591-597 ◽

2019 ◽

Vol 23 (8) ◽

pp. 591-597 ◽

Cited By ~ 1

Author(s):

Cícero J. da Silva ◽

José A. Frizzone ◽

César A. da Silva ◽

Adelmo Golynski ◽

Luiz F. M. da Silva ◽

...

Keyword(s):

Water Deficit ◽

Block Design ◽

Water Productivity ◽

Irrigation Management ◽

Total Yield ◽

Crop Evapotranspiration ◽

Industrial Processing ◽

Tomato Yield ◽

Subsurface Drip ◽

Water Depths

ABSTRACT Irrigation management is essential for tomato fruits yield and quality. Therefore, the aim of this study was to evaluate the yield of tomatoes for industrial processing, ‘BRS Sena’ hybrid, subjected to water depths and irrigation suspension periods before harvest, irrigated by subsurface drip irrigation, in Goiás, Brazil (17º 49’ 19.5” S and 49º 12’ 11.3” W), in 2015 and 2016. The experiments were conducted under a randomized complete block design, with four replications, in split plots. Five irrigation levels (50, 75, 100, 125 and 150% of crop evapotranspiration) were evaluated in the plots and five irrigation suspension periods (0, 7, 14, 21 and 28 days before harvest) were evaluated in the subplots. At 125 days after transplanting the seedlings, the yields of green, mature, rotten fruits and total yield, water productivity and percentages of green, mature and rotten fruits were evaluated. The highest total fruit yields (105.86 and 58.60 t ha-1) were obtained with water replacements ranging from 125.47 (615.09 mm) to 132.11 (564.00 mm) of crop evapotranspiration, in the first and second year of experiment, respectively. Growing plants under water deficit and excess increased the incidence of rotten fruits and decreased that of mature fruits. Pre-harvest irrigation suspension reduced crop yield and incidence of green fruits and increased the incidence of rotten fruits. The highest water productivity by the crop occurred under water deficit, management that may be interesting for regions with water restrictions.

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Yield and quality of melon under silicon doses and irrigation management in a greenhouse

Pesquisa Agropecuária Tropical ◽

10.1590/1983-40632018v4851265 ◽

2018 ◽

Vol 48 (2) ◽

pp. 140-146

Author(s):

Cláudia Salim Lozano ◽

Roberto Rezende ◽

Tiago Luan Hachmann ◽

Fernando André Silva Santos ◽

Marcelo Zolin Lorenzoni ◽

...

Keyword(s):

Nutrient Management ◽

Block Design ◽

Irrigation Management ◽

Soluble Solids ◽

Irrigation Level ◽

Yield And Quality ◽

Randomized Block Design ◽

Maturation Index ◽

Irrigation Levels

ABSTRACT The netted melon requires special growing conditions, including a protected environment, an adequate staking system and proper water and nutrient management. This study aimed to assess the effect of irrigation levels and silicon doses on the yield and quality of Sunrise hybrid melons, in a greenhouse. A randomized block design was used, with a 5 x 3 factorial scheme and four replications. The first factor consisted of five silicon doses (0 kg ha-1, 50 kg ha-1, 100 kg ha-1, 150 kg ha-1 and 200 kg ha-1) and the second of three irrigation levels (40 %, 70 % and 100 % of the ETc). The results demonstrated that the applied irrigation levels and silicon doses have no influence on the yield traits of melon plants. The irrigation level corresponding to 100 % of the ETc promotes higher values for soluble solids (9.86 ºBrix) and maturation index (114.9) on fruits. The increase of silicon doses up to 200 kg ha-1 also increases the maturation index in the treatment with the greatest irrigation level and reduces this index at the shallowest level applied.

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PRODUÇÃO E QUALIDADE DA ABÓBORA MARANHÃO SOB INFLUÊNCIA DE LÂMINAS DE IRRIGAÇÃO E DOSES DE NITROGÊNIO

Irriga ◽

10.15809/irriga.2020v25n1p87-101 ◽

2020 ◽

Vol 25 (1) ◽

pp. 87-101

Author(s):

Rômulo Uchôa Bezerra ◽

Thales Vinícius de Araújo Viana ◽

Benito Moreira de Azevedo ◽

João Valdenor Pereira Filho ◽

Alan Diniz Lima

Keyword(s):

Block Design ◽

Irrigation Management ◽

Food Challenge ◽

Dry Weight ◽

Quality Parameters ◽

Production Characteristic ◽

Randomized Complete Block Design ◽

Influence Of Water ◽

Irrigation Levels

PRODUÇÃO E QUALIDADE DA ABÓBORA MARANHÃO SOB INFLUÊNCIA DE LÂMINAS DE IRRIGAÇÃO E DOSES DE NITROGÊNIO RÔMULO UCHÔA BEZERRA1; THALES VINÍCIUS DE ARAÚJO VIANA2; BENITO MOREIRA DE AZEVEDO2; JOÃO VALDENOR PEREIRA FILHO3 E ALAN DINIZ LIMA4 1Departamento de Engenharia Agrícola - DENA, Universidade Federal do Ceará – Campus do Pici – CE, Avenida Mister Hull, s/n, CEP: 60455-760, Fortaleza, Ceará, Brasil, [email protected]; 2 Professores do Curso de Pós-Graduação em Engenharia Agrícola da Universidade Federal do Ceará – Campus do Pici – CE, Avenida Mister Hull, s/n, CEP: 60455-760, Fortaleza, Ceará, Brasil, [email protected]; [email protected]; 3 Professor do curso de Bacharelado em Engenharia Agronômica da Universidade Estadual do Piauí – Campus Cerrado do Alto Parnaíba – PI, Rua Almir Benvindo, s/n, Bairro Aeroporto, CEP: 64860-000, Uruçuí, Piauí, Brasil, [email protected]; 4 Professor do curso de Bacharelado em Engenharia Agrícola e Ambiental da Faculdade Terra Nordeste – FATENE – CE, Rua Coronel Correia, 1119, Centro, CEP 61600-000, Caucaia, Ceará, Brasil, [email protected]. 1 RESUMO A cultura da abóbora vem se destacando no cenário mundial devido a crescente preocupação com a questão do desafio alimentar e sua característica de produção associada a pequenas propriedades. São escassas as informações na literatura acerca das respostas da abóbora ao manejo da irrigação associada a adubação nitrogenada. Objetivou-se neste trabalho avaliar o desempenho produtivo (número, massa fresca, massa seca e produtividade) e os parâmetros de qualidade (diâmetro, comprimento, espessura da polpa e °Brix dos frutos) da cultura da abóbora sob lâminas de irrigação associadas a doses de adubo nitrogenado. Adotou-se o delineamento de blocos casualizados em parcelas subdivididas, onde nas parcelas estavam inseridas o fator doses de nitrogênio (50; 70; 100; 125% kg de N ha-1) e nas subparcelas as lâminas de irrigação (50; 75; 100; 125% da evaporação medida no tanque classe A - ‘ECA’) com quatro repetições. A pesquisa foi conduzida em campo na área experimental da Estação Meteorológica pertencente a Universidade Federal do Ceará. A produtividade máxima alcançada foi de 4269,6 kg ha-1 obtido com a combinação da lâmina de água de 444,10 mm (122,5% da ECA) e do nível de nitrogênio de 33,65 kg ha-1 de N (112,16 % do recomendado de N). Palavras-chave: jerimum de leite, adubação, manejo da irrigação. BEZERRA, R. U.; VIANA, T. V. de A.; AZEVEDO, B. M. de; PEREIRA FILHO, J. V.; LIMA, A. D. PRODUCTION AND QUALITY OF MARANHÃO PUMPKIN UNDER INFLUENCE OF WATER DEPTHS AND NITROGEN DOSES 2 ABSTRACT The pumpkin crop is becoming outstanding in the world scenario due to growing concern with the issue of food challenge and its production characteristic associated with small properties. There is little information in the literature about pumpkin responses to irrigation management associated with nitrogen fertilization. The objective of this work was to evaluate productive performance (number, fresh weight, dry weight and productivity) and quality parameters (diameter, length, pulp thickness and ° Brix of the fruits) of pumpkin culture under irrigation levels associated with doses of nitrogen fertilizer. A randomized complete block design was used in subdivided plots, where the nitrogen dose factor (50; 70; 100; 125% kg of N ha-1) was inserted in the plots and in the subplots, irrigation depths (50; 75; 100; 125% of evaporation measured in tank class A - 'ECA') with four replicates. The research was conducted in the experimental area of the Meteorological Station belonging to the Federal University of Ceará. The maximum productivity reached was 4269.6 kg ha-1 obtained with the combination of water blade of 444.10 mm (122.5% of ECA) and nitrogen level of 33.65 kg ha-1 of N (112.16% of the recommended N). Keywords: milk jerimum, fertilization, irrigation management.

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Irrigation of arugula cultivars in the region of Zona da Mata Mineira

Semina Ciências Agrárias ◽

10.5433/1679-0359.2019v40n3p1101 ◽

2019 ◽

Vol 40 (3) ◽

pp. 1101

Author(s):

Caio César Silva Alvarenga Correia ◽

Fernando França da Cunha ◽

Everardo Chartuni Mantovani ◽

Derly Jose Henriques Silva ◽

Santos Henrique Brant Dias ◽

...

Keyword(s):

Irrigation System ◽

Block Design ◽

Field Capacity ◽

Minas Gerais ◽

Crop Evapotranspiration ◽

Randomized Complete Block Design ◽

Plant Water Potential ◽

Irrigation Depth ◽

Use Efficiency ◽

Shoot Mass

The region of the Zona da Mata of Minas Gerais stands out in the production of vegetables. To achieve the success in this activity, it is important to choose suitable cultivars and apply irrigation correctly. This study aimed to determine the optimum irrigation depth and evaluate new commercial arugula cultivars in the Zona da Mata of Minas Gerais. The cultivation was carried out in a greenhouse during three cycles with periods of 33 (January 11, 2016 to February 12, 2016), 36 (March 1, 2016 to April 5, 2016), and 36 (April 12, 2016 to May 17, 2016) days. The experimental design was a randomized complete block design with five replications, five irrigation depths (50, 75, 100, 125, and 150% of the crop evapotranspiration-ETc) in the plots, and three arugula cultivars (Antonella, Cultivada, and Folha Larga) in the subplots. A drip irrigation system was used. The parameters evaluated were root depth, root fresh mass, plant water potential, leaf temperature, number of commercial leaves, total number of plants, fresh shoot mass, and water use efficiency. Arugula cultivars did not present differences in their agronomic characteristics. An irrigation depth of the 50% ETc is recommended if the soil moisture is under the field capacity at the beginning of the arugula cycle.

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SUGARCANE CROPS WITH CONTROLLED WATER DEFICIT IN THE SUB-MIDDLE SÃO FRANCISCO VALLEY, BRAZIL

Revista Caatinga ◽

10.1590/1983-21252018v31n419rc ◽

2018 ◽

Vol 31 (4) ◽

pp. 963-971 ◽

Cited By ~ 1

Author(s):

WELSON LIMA SIMÕES ◽

MARCELO CALGARO ◽

MIGUEL JULIO MACHADO GUIMARÃES ◽

ANDERSON RAMOS DE OLIVEIRA ◽

MÍRIAN PAULA MEDEIROS ANDRÉ PINHEIRO

Keyword(s):

Water Deficit ◽

Block Design ◽

Development Stage ◽

Maturation Stage ◽

Randomized Block Design ◽

Sugarcane Yield ◽

Maturation Stages ◽

Crop Cycle ◽

Technological Quality

ABSTRACT Sugarcane is one of the most affected crops by water scarcity. The efficient use of the irrigation water is an alternative to minimize this problem. The objective of this work was to evaluate biometric parameters, yield, and technological quality of sugarcane plants subjected to different controlled water deficit regimes in the sub-middle São Francisco Valley, Brazil. The experiment was conducted in a randomized block design, in two crop cycles, with three replications, with ten treatments consisted of three controlled water deficits (15%, 30%, and 45% of the crop evapotranspiration - ETc), applied at three development stages of the plant - sprouting and tillering (Stage I), grand growth (Stage II), and maturation (Stage III) - and a control with 100% of the ETc throughout the entire crop cycle. The controlled water deficit did not affect the technological quality of the sugarcane in any development stage. The sugarcane yield was higher when using a controlled water deficit of 30% of ETc in the sprouting and tillering stages of the plants. The water deficit of 15% of ETc is recommended for the grand growth, or maturation stages of the sugarcane plants for a greater water use efficiency of the production system.

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Carrot yield and water-use efficiency under different mulching, organic fertilization and irrigation levels

Revista Brasileira de Engenharia Agrícola e Ambiental ◽

10.1590/1807-1929/agriambi.v22n7p445-450 ◽

2018 ◽

Vol 22 (7) ◽

pp. 445-450

Author(s):

Daniel F. de Carvalho ◽

Daniela P. Gomes ◽

Dionizio H. de Oliveira Neto ◽

José G. M. Guerra ◽

Janaína R. C. Rouws ◽

...

Keyword(s):

Water Use Efficiency ◽

Water Use ◽

Irrigation Management ◽

Gliricidia Sepium ◽

Time Domain Reflectometry ◽

Crop Evapotranspiration ◽

Organic Fertilization ◽

Use Efficiency ◽

Irrigation Levels ◽

Water Depths

ABSTRACT This study was carried out to evaluate the contributions to the optimization of water use in a carrot crop under different forms of mulch using Gliricidia sepium, fertilization with castor bean cakes and irrigation water depths. The experiment was conducted in Seropédica, RJ, Brazil (22º 46’ S and 43º 41’ W), from June to September 2010. The experiment was conducted using a split-split-plot scheme (5 x 3 x 2), with four replicates. The five plots had irrigation depths corresponding to 0, 43, 72, 100 and 120% of crop evapotranspiration (ETc); the three subplots contained the different forms of mulch (whole leaves (WL) and chopped leaves and branches (CLB)) and the absence of mulch (AM); and the two sub-subplots contained either the presence (PF) or absence of fertilization (AF). Using time domain reflectometry (TDR) in the irrigation management, water depths ranging from 67.8 to 285.5 mm were applied. The use of mulch in association with fertilization led to higher yields and water-use efficiency (WUE) of the carrot plants, and the mulch composed of WL performed best. The application of irrigation depths corresponding to 97% of ETc promoted the highest carrot yields, although the highest values of WUE were observed, with irrigation depths corresponding to a range from 51 to 68% of ETc.

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Grain quality of upland rice cultivars in response to cropping systems in the Brazilian tropical savanna

Scientia Agricola ◽

10.1590/s0103-90162008000500004 ◽

2008 ◽

Vol 65 (5) ◽

pp. 468-473 ◽

Cited By ~ 17

Author(s):

Carlos Alexandre Costa Crusciol ◽

Orivaldo Arf ◽

Rogério Peres Soratto ◽

Gustavo Pavan Mateus

Keyword(s):

Water Availability ◽

Upland Rice ◽

Irrigation System ◽

Cropping Systems ◽

Block Design ◽

Sprinkler Irrigation ◽

Rice Cultivars ◽

Nutrient Contents ◽

Rice Milling

The industrial quality of grain is an important parameter to determine the commercial value of rice and can be influenced by water availability and type of cultivar. The present study aimed to evaluate the milling yield as well as the protein and nutrient contents of polished grains originated from two upland rice cultivars grown under rainfed and sprinkler-irrigated conditions. A randomized block design was used in a split-plot arrangement with eight replicates. Plots consisted of two cropping systems (rainfed and sprinkler-irrigated) with subplots consisting of two cultivars recommended for upland ecosystems (IAC 201 and Carajás). The sprinkler irrigation system increased upland rice milling (8.0%) and head rice yield (23.7%), for years with hot and dry weather spells occurring during the reproductive and maturation stages. Under conditions of lower water availability, the Carajás cultivar showed a milled yield value 5.1% higher than that of cultivar IAC 201. Lower water availability provided increases in protein, N, P, Ca, Mg, Fe, and Zn contents but reductions in S and Cu in the polished grains. Cultivars IAC 201 and Carajás had similar nutrient contents in the polished grains.

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EFEITO DE NÍVEIS DE COBERTURA DO SOLO SOBRE O MANEJO DA IRRIGAÇÃO DO FEIJOEIRO (Phaseolus vulgaris L.)

Irriga ◽

10.15809/irriga.2002v7n1p42-52 ◽

2018 ◽

Vol 7 (1) ◽

pp. 42-52

Author(s):

Ana Lucia Pereira ◽

José Aloisio Alves Moreira ◽

Antonio Evaldo Klar

Keyword(s):

Phaseolus Vulgaris ◽

Common Bean ◽

Irrigation System ◽

Block Design ◽

Irrigation Management ◽

Phaseolus Vulgaris L ◽

Randomized Block Design ◽

Bean Yield ◽

Red Latosol ◽

Set Up

EFEITO DE NÍVEIS DE COBERTURA DO SOLO SOBRE O MANEJO DA IRRIGAÇÃO DO FEIJOEIRO (Phaseolus vulgaris L.) Ana Lúcia PereiraAGENCIARURAL - Campo Experimental de Rio Verde, Rua do Ginásio, 554, Centro,CEP 75.901-210- Rio Verde, GOJosé Aloísio Alves MoreiraEmbrapa Arroz e Feijão, Cx. Postal 179, CEP 74001-970 – Goiânia, GOAntônio Evaldo Klar*Dept o de Eng. Rural – FCA-UNESP, Cx. Postal 237, CEP 18603-970 – Botucatu, SP*Pesquisador Científico do CNPq 1 RESUMO Este trabalho teve por objetivo estudar os efeitos da cobertura do solo sobre o manejo da irrigação do feijoeiro (Phaseolus vulgaris L.). Os tratamentos constaram de diferentes níveis de cobertura morta com palhada de capim braquiária (Brachiaria decumbens), obedecendo delineamento experimental de blocos ao acaso com quatro repetições para os seguintes tratamentos: 0% (0 t/ha), 25% (2,25 t/ha), 50% (4,50 t/ha), 75% (6,75 t/ha) e 100% (9,0 t/ha). O experimento foi conduzido na Embrapa Arroz e Feijão, no município de Santo Antonio de Goiás, GO, a 16° 28’ 00” de latitude sul, 49° 17’00” de longitude oeste e 823 m de altitude, num Latossolo Vermelho escuro argiloso, durante o período de junho a setembro de 1997. O manejo da irrigação por microaspersão foi realizado utilizando tensiômetro e a curva característica de água no solo, irrigando toda vez que tensão matricial da água do solo atingia 30 kPa. A análise dos resultados mostrou diminuição do número de irrigações e aumento do turno de rega nos tratamentos onde a cobertura atingiu mais de 50% da superfície do solo. Os valores médios da tensão da água do solo nos tratamentos com 0,25 e 50% apresentaram maior variação (turno de rega menor). A cobertura do solo propiciou maior eficiência do uso da água.A produção de grãos foi avaliada não havendo diferença de produtividade entre os tratamentos de cobertura morta. UNITERMOS: Cobertura do solo, Irrigação, Phaseolus vulgaris L. PEREIRA, A. L.; MOREIRA , J. A. A.; KLAR, A. E. THE EFFECTS OF MULCH ON IRRIGATION MANAGEMENT OF COMMON BEAN (Phaseolus vulgaris L.) 2 ABSTRACT The aim of this study was to evaluate the effects of mulch on irrigation management of common bean (Phaseolus vulgaris L.). The randomized block design with four replications was applied on five mulch rates: 0% (0 t/ha), 25% (2,25 t/ha), 50% (4,5 t/ha), 75% (6,75 t/ha) and 100% (9,0 t/ha).The study was set up at the Experimental Station of Embrapa – CNAF, Santo Antonio de Goias, 16°2’ south, 49° 17’ west and 820 m altitude from June to September, 1997 in a Dark – Red Latosol soil. A microsprinkle irrigation system was used.The results showed: - bean yield was not affected by mulch treatments; - the irrigation number was decreased when mulch application was higher than 50%. KEYWORDS: mulch, irrigation, Phaseolus vulgaris L.

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Proposals of Universal Algorithms for the Automation of the Irrigation Process of Plant Crops

Agricultural Engineering ◽

10.2478/agriceng-2021-0009 ◽

2021 ◽

Vol 25 (1) ◽

pp. 115-124

Author(s):

Paweł Chwietczuk

Keyword(s):

Irrigation System ◽

Irrigation Management ◽

System Construction ◽

Correct Operation ◽

Field Crops ◽

Soil Moisture Sensors ◽

Construction Scheme ◽

Relative Water ◽

Intelligent Irrigation

Abstract The article presents the issues of water saving, declining freshwater resources in the world, and the problems of drought in the context of proper and effective irrigation of various types of crops. The use of microprocessor irrigation management systems has a significant impact on the quality of the yield and the rational use of water. An example of the irrigation system construction scheme is presented. The system uses strain gauge soil moisture sensors, which can be used to determine the relative water demand of plants, depending on the growing substrate. Additional system security in the form of rainfall and wind speed sensors provide the necessary information for the correct operation of the irrigation system. Then, two universal algorithms were proposed to automate the irrigation process of plant crops due to the way water is supplied to the plants. The first algorithm is designed for systems using drip lines - they are widely used in various types of crops where there is a need to precisely supply water to the plant, such systems are destined especially for crops grown undercover or for nursery crops. The second algorithm for sprinkler-based systems is mainly used in field crops and in mushroom farms. The presented algorithms can be used to design and implement intelligent irrigation systems, and after adding an additional module – for plant fertilization.

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CRESCIMENTO VEGETATIVO, PRODUTIVIDADE E QUALIDADE DOS FRUTOS DO ABACAXIZEIRO ‘BRS IMPERIAL’ SOB LÂMINAS DE IRRIGAÇÃO

Irriga ◽

10.15809/irriga.2021v26n2p398-410 ◽

2021 ◽

Vol 26 (2) ◽

pp. 398-410

Author(s):

Weslley do Rosário Santana ◽

Luã Víthor Chíxaro Almeida Falcão Rosa ◽

Joabe Martins de Souza ◽

Robson Bonomo

Keyword(s):

Vegetative Growth ◽

Block Design ◽

Irrigation Management ◽

Physicochemical Characteristics ◽

Soluble Solids ◽

Ananas Comosus ◽

Espírito Santo ◽

Physical Chemical ◽

Espirito Santo

CRESCIMENTO VEGETATIVO, PRODUTIVIDADE E QUALIDADE DOS FRUTOS DO ABACAXIZEIRO ‘BRS IMPERIAL’ SOB LÂMINAS DE IRRIGAÇÃO WESLLEY DO ROSÁRIO SANTANA1; LUÃ VÍTHOR CHÍXARO ALMEIDA FALCÃO ROSA1; JOABE MARTINS DE SOUZA1 E ROBSON BONOMO1 1Departamento de Ciências Agrárias e Biológicas, Universidade Federal do Espírito Santo, Rod. Governador Mario Covas, Km 60 - Litorâneo, CEP 29932-540, São Mateus, ES, Brasil. E-mail: [email protected]; [email protected]; [email protected]; [email protected] 1 RESUMO Conhecer a demanda hídrica de uma cultura em uma região possibilita um melhor manejo da irrigação e desenvolvimento da cultura. Diante disso, objetivou-se avaliar o crescimento vegetativo, qualidade físico-química dos frutos e a produtividade do abacaxizeiro ‘BRS Imperial’ sob lâminas de irrigação nas condições de tabuleiro costeiro, no estado do Espírito Santo (ES). O experimento foi realizado na Universidade Federal do Espírito Santo, município de São Mateus, em um delineamento em blocos casualizados, com sete lâminas de irrigação (0%, 25%, 50%, 75%, 100%, 125% e 150% da evapotranspiração de cultura-ETc), quatro repetições e seis plantas úteis por parcela. Foram avaliadas características vegetativas da planta e físico-químicas dos frutos e a produtividade. Os resultados obtidos foram submetidos à análise de variância. Para as condições em estudo, a maior altura de planta e diâmetro do caule observado foi de 28,8 cm e 65,1 mm, respectivamente, ambos na lâmina aplicada referente a 69% da reposição da ETc. Para as características físico-químicas analisadas, as lâminas de irrigação aplicadas não influenciaram significativamente a cultura. A produtividade obtida foi de 40,41 t ha-1, com teor médio de sólidos solúveis totais de 16,46 ºBrix, valor superior ao mínimo exigido para a colheita e comercialização. Palavras-chave: Ananas comosus (L.) Merril, características físico-químicas, massa do fruto, manejo da irrigação. SANTANA, W. do R.; ROSA, L. V. C. A. F.; SOUZA, J. M. de; BONOMO, R. VEGETATIVE GROWTH, YIELD AND FRUIT QUALITY OF PINEAPPLE CROP ‘BRS IMPERIAL' UNDER IRRIGATION DEPTHS 2 ABSTRACT Knowing the hydric demand of a crop in a region enables better irrigation management and crop development. Thus, this study aimed to evaluate the vegetative growth, physical-chemical quality of the fruits and the yield of the pineapple crop ‘BRS Imperial’ under irrigation depths in coastal conditions, in the state of Espírito Santo (ES). The experiment was conducted at the Federal University of Espírito Santo, municipality of São Mateus, in a randomized block design, with seven irrigation depths (0%, 25%, 50%, 75%, 100%, 125% and 150% of the evapotranspiration of the crop (ETc)), four replications and six useful plants per plot. The vegetative characteristics of the plant and the physicochemical characteristics of the fruits were evaluated, as well as the yield. The results were subjected to analysis of variance. For the conditions under study, the highest plant height and stem diameter observed were 28.8 cm and 65.1 mm, respectively, both in the applied irrigation depth referring to 69% of the replacement of the ETc. For the physical-chemical characteristics analyzed, the applied irrigation depths did not significantly influence the crop. The yield obtained was 40.41 t ha-1, with an average content of total soluble solids of 16.46 ºBrix, higher than the minimum required for harvest and commercialization. Keywords: Ananas comosus (L.) Merril, physicochemical characteristics fruit, fruit mass, irrigation management.

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